AMERICAN GOBIIDiE AND CALLIONYMID^. 57 



X. EVORTHODUS Gill. 



19. Evorthodus breviceps Gill. West ladiau faiiua. 



XI. LOPHOGOBIUS Gill. 



20. lophogobiuscyprinoides (Pallas). West Indian fauna. 



XII. GoBius Linnaeus. 



21. Gobius lucretiae spec. nov. 



No. 3957, one specimen, 1% inches. Pearl Island, Gulf of Panama. 



Head 3| in length (4| in total); depth 5^ (7); D. VII-10; 

 A. 12. Scales, in a median series, about 28; in a cross 

 series, 8. 



Body slightly compressed posteriorly; head little wider 

 than high; eye placed high, its diameter equal to length of 

 snout, 4i in head; profile little decurved; mouth large, 

 oblique, maxillary extending below posterior margin of 

 orbit, 2 in head; intermaxillary anteriorly on a level with 

 the centre of the pupil; teeth all recurved, large, those of 

 the upper jaw in a narrow band, the teeth of outer and 

 inner series enlarged, those of the lower jaw similar, largest 

 in front. No dermal flaps on shoulder-girdle. Scales large, 

 \erj weakly ctenoid; becoming cycloid and very much 

 crowded above and below pectoral; head, breast and ante- 

 rior part of nape naked. As seen through a lens, these 

 regions seem to be covered with minute, imbedded scales: 

 this effect is, no doubt, due to light reticulations on a 

 darker ground. 



Dorsal spines slender, not filamentous; caudal pointed, 

 3 in length of body; ventrals Ij in head; pectorals longer 

 than head. 



Color light brownish, with four oblique, dark cross bars 

 as wide as the interspaces; four narrower transverse bars on 

 nape and back; a large dusky spot at base of caudal; upper 



